There are number of tutorials available on Internet, which would help you unlock BlackBerry. Here is more than a such normal tutorial as it lets you unlock BlackBerry for free. And best part about this tutorial is the fact that it works on almost all versions and models of BlackBerry.
How To Unlock For Free BlackBerry For Free
STEP 1: Call your carrier and ask for the MEP Code and they would ask for the IMEI number, so give it.
STEP 2: In order to know your IMEI number, type *#06# on your BlackBerry and it will pop up the IMEI number.
STEP 3: Now, once you get your MEP code, simply turn off the wireless radio on your BlackBerry
STEP 4: Now, navigate it as Settings or Options > Advance Options > Sim Card. There type MEPD on your BlackBerry.
STEP 5: Now, you should see Network as Active.
STEP 6: Now hold SHIFT + type “MEPE” or “MEP2?
STEP 7: Now, you should see Network as Disabled.
That is all! This is how you can unlock your BlackBerry for free.